Sealing of the inlet hole of the three-level distribution box

Put the seal up to the hole from the inside of the box, and screw the nut onto the seal from the outside. Polylok offers the only catch basin and distribution box seal on the market that accepts multiple size pipes. Precise leveling is simple with the addition of our patented Dial-A-Flow™ GRADE ACCESS RISER The Distribution. How to install and utilize the pipe seals that come with the Polylok distribution boxes. This component ensures that effluent is evenly distributed across the leach field, preventing overloading and potential system. Good practices call for keeping drop boxes and distribution boxes level and sealing them properly to stop root and water penetration A drop box should be installed level and should include an inspection port. [pdf]